New Year Begins With Anti-Vaping Researcher Telling Public that Smoking is No More Hazardous than Vaping

This study involved laboratory testing only. The effect of e-cigarette aerosol was examined on cell cultures, which by definition have been altered so that they are unlike actual human cells. The results of studies on cells in laboratory cultures cannot necessarily be extrapolated to clinically meaningful effects in humans.In fact, this point is readily acknowledged by the study authors. The authors also acknowledge that the dose of e-cigarette aerosol to which the cells were exposed was far above that experienced in real life, which further limits the conclusions that can be drawn about the effects of vaping on actual humans.Moreover, the study and press release both omit discussion of one of the most important findings from the research: namely, that tobacco smoke was found to have much higher levels of cytotoxicity than e-cigarette aerosol. In fact, the paper reports that while the cell lines were treated for a full week with e-cigarette aerosol, "Because of the high toxicity of cigarette smoke extract, cigarette-treated samples of each cell line could only be treated for 24 h." To properly compare the cytotoxicity of tobacco smoke and e-cigarette aerosol, the experimenters should have progressively diluted the tobacco smoke to find the lowest dilution at which effects were still observed. Clearly, the most striking finding of the study was that the e-cigarette aerosol had much lower cytotoxicity than the tobacco smoke. But this critical finding is hidden from journal ...
Source: The Rest of the Story: Tobacco News Analysis and Commentary - Category: Addiction Source Type: blogs